In 1958, William Keating began his career in government service as judge of Hamilton County Municipal Court; as a requirement of his judicial service, the name of the firm was changed to Keating & Muething.[4] After the appointment, Donald P. Klekamp was hired from U.S. Steel in Cleveland to take over William's work. In the mid-1960s, Klekamp was elected partner, and the name of the firm was changed to Keating, Muething & Klekamp.[4]

2013 Chambers USA recognized KMK as a Leading Law Firm in several areas including General Commercial Litigation, Corporate/Mergers & Acquisitions and Bankruptcy/Restructuring.[8]

KMK earned National Rankings in the U.S. News "Best Law Firms" 2013 Report in four areas including Commercial Litigation, Corporate Law, Land Use & Zoning and Venture Capital Law. The firm earned 35 Metropolitan Rankings as well.[9]

Super Lawyers named KMK the Top Corporate & Transactions Law Firm in Ohio in 2013.

Three KMK lawyers have been elected to the American College of Trial Lawyers: James E. Burke, Louis F. Gilligan, and Gregory M. Utter. Gregory Utter was inducted as a Fellow to the Litigation Counsel of America.

Riverbend Commercial Title Agency is a wholly owned subsidiary of Keating Muething & Klekamp PLL. Riverbend clients include: developers, builders, commercial lenders, buyers, sellers, lessees, as well as referrals from commercial brokers and attorneys. Riverbend is an authorized agent of 5 nationally renowned underwriters, including Chicago Title Insurance Company, Commonwealth Land Title Insurance Co., First American Title Insurance Co., Ohio Bar Title Insurance Co., and Old Republic National Title Insurance Co.[10]

KMK Consulting Company, founded in 1998 as a wholly owned subsidiary of Keating Muething & Klekamp PLL, provides specialized business consulting services to corporate, entrepreneurial, non-profit and executive clients and high-net-worth individuals. KMK Consulting Company specializes in advisory services in connection with: government affairs, leadership development, economic development, business alliances, and public/private partnerships. Collectively, the KMK Consulting team has more than 50 years of economic development related experience on a national basis. Clients include AK Steel, First Financial Bank, VRI, US Playing Card Company, Delta Airlines, and Macy's.[11]